The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 29, 2008

Filed:

Oct. 04, 2004
Applicants:

Yoshiaki Kawasaki, Shizuoka, JP;

Michio Ono, Shizuoka, JP;

Tetsuya Ogawa, Saitama, JP;

Tadashi Tsunoda, Saitama, JP;

Inventors:

Yoshiaki Kawasaki, Shizuoka, JP;

Michio Ono, Shizuoka, JP;

Tetsuya Ogawa, Saitama, JP;

Tadashi Tsunoda, Saitama, JP;

Assignees:

Suruga Seiki Co., Ltd., Shizuoka, JP;

Honda Motor Co., Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 22/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A device and a process for producing a corrugated plate having a plurality of bent-into-contact portions extending in parallel on one face of a metal plate employs a number of steps. A first pressing step sequentially molds a plurality of U-shaped bent portions in the metal plate. A second pressing step sequentially molds the bent-into-contact portions by sequentially crushing the plurality of U-shaped bent portions. In the first pressing step, the U-shaped bent portions are fed in a direction orthogonal to the direction of the U-shaped bent portions, and positioned, and are pressed in a state in which the position is released. In the second pressing step, another face of the metal plate is pressed flat while molding the bent-into-contact portions by pressing the U-shaped bent portions from both sides.


Find Patent Forward Citations

Loading…